The "remote-url" command:
Usage: fossil remote-url ?URL|off? Query and/or change the default server URL used by the "pull", "push", and "sync" commands. The remote-url is set automatically by a "clone" command or by any "sync", "push", or "pull" command that specifies an explicit URL. The default remote-url is used by auto-syncing and by "sync", "push", "pull" that omit the server URL. See "fossil help clone" for further information about URL formats See also: clone, push, pull, sync